CA Bus & Prof Code Section 17510.4

If the initial solicitation or sales solicitation is made by radio, television, letter, telephone, or any other means not involving direct personal contact with the person solicited, including over the Internet, this solicitation shall clearly disclose the information required by Section 17510.3. This disclosure requirement shall not apply to any radio or television solicitation of 60 seconds or less. If the gift is subsequently made or the sale is subsequently consummated, the solicitation or sale for charitable purposes card shall be mailed to or otherwise delivered to the donor, or to the buyer with the item or items purchased.